Electric winch



May 18 1926.

" P. WlL-SING ELECTRIC WINCH Filed Oct. 8, 1925 3 Sheets-Sheet 1 In Ventar:

May 18 1926.- 1,585,065

P. WHFSING ELECTRIC WINCH Filed Oct. 8, 1925v I 5 Sheets-Sheet z May 18 1926 'P. wILsnG ELECTRIC WINCH Fi1ed 0ct. 8, 1925 3 Sheets-Sheet 5 lm eman p........1 May18,19 26.

UNITED STATES- PATENT. OFFICE.

PAUL WILSING, F DUISBUBG GERMANY. I

ELECTRIC WINCH.

Application-filed October 8, 1925. Serial No. 81,241.

My invent-ion refers to electrically driven winches, more especially of the kind in which the electromotor is mounted in a casing and the rotar field of the motor is arranged to form t efcable drum,the armature and field being mounted for rotation in opposite directions and their required relative speed of rotation being ensured by a train 0 gear wheels mounted in the easing. It is an object of my invention to improve this type of electric winches with a view to simplifying and facilitating the assembling and dismantling of the several parts constituting it and to rendering all these parts as easily accessible as possible. To this end I mount the electromotor within the casing in such manner that it can be withdrawn therefrom as a self-contained unit, this being renderedpossi-ble by. making the ball or roller bearing inserted between the casing and the cable drum forming part of the motor large enough to allow the spur wheel serving for the transmission of power and which. can form a toothed rim mounted on the drum to pass freely through the 7 opening in-- the casing. In a similar manner the neck journal bearing provided in the opposite end Wall of the casing is made large enough to allow the pinion mounted, on the motor shaft to pass through.- If the electromotor is thus withdrawn, the pinion on the motor shaft will simply'be moved out of gear with the spur wheel servingfor transmitting power onto the cable drum. Obviously therefore the and cover closing the casing on one side need merely be removed and the electromotor can then be withdrawn s'idewa s as a whole. n a similar manner mounted within the field forming the cable drum so as to be easily withdrawn therefrom.

In the drawings aflixed to this specification and forming part thereof an electric winch embodying my invention is illustrated diagrammatically by way of example.

- In the. drawingsp Fig. 1 is a longitudinal section,

Fig. 2 anend view, partly in cro'ss'section', with the cover removed. I Fig. 3 is a plan view drawn to a smaller scale, with the-starter shown. in unfolded position. 4

. Fig. 4 is an elevatiom-partly in axial sec- .mounted on the cable drum 11 is enough to allow the toothed rim 18 mounted the armature is tion, drawn to a'still smaller scale and showing the several parts constituting the winch after withdrawal from the casing.

Referring to the drawings," 20 is the casing and 11 is the cable drum whichat the same time forms the field of the electrometor. 13 is the rotary armature of this motor which is mounted axially within the drum 11 and 29 are the leads, 28 the slip rings, 26

the brushes and the collector serving for' on the other end of the drum to pass through freely. The neck bearing 12* provided in the opposite end wall of the casm is large enough to allow the pinion 15 on e motor shaft to pass through. ;As the toothed rim 18 forms part of the cable drum 11, the right hand cover 43' need merely be removed and to enable the cable drum and the parts mounted therein to be withdrawn in axial direction without-removing thepulley block from the place where it is mounted. In

thus withdrawing the electromotor the rim 18 and pm1on 15 are automatically moved out. of gear with the pinion 17 and spur wheel 16 respectively.

On the other hand the neck bearing 140i the motor'shaft provided in the end wall of the cable drum is made large enough to allow the pinion 15 to, pass through. By removing the part 80 mounted on the drum 11 and containing the slip rings 28 andbrushes 26, which can easily be done by loosening the nuts or the like securing it in place, the armature 13 can simply be withdrawn from the drum, and this is possible even in case that it is-not intended to remove the drum from the casing 20.

- In a similar manner the transmissiongear the locking ring 58 securing the bearing 12 in position need merely be loosened in order till can be withdrawn; on removing the cover mounted on this end of the CttSlIlg end loosening the screw bolts securing the transmission shaft in position in the flange 5 this being rendered possible by spertures 56 being provided in the spur wheel 16, the wheels 16 and 17 can be withdrawn laterally from the bearing 21, this bearing having a diameter large enough to allow the pinion 17 to pass through. Obviously the bearing 21' need not be e plain hearing. but a ball hearing or roller bearing might be inserted in its place.

lhe broke blocks 30 acting on the brake wheel 85 from within are mounted together with this wheel in the extension 81 of the drum, so that by removing the locking ring 58 they can be withdrawn. The -pivots 57 for the brelre lowers which are fixed in space, rire provided on the locking ring 58. The connection between the levers 31 and the brake magnet 32 is severed by simply pulling the levers oil the journal 82 (Fig. 1). (Ewing to this srrengement of parts, when the drum shall be removed, the brake need not he removed from the drum.

The armature 33 of'the t eke magnet is maintained in one end position by springs 75, which balance its weight, so that the magnet can he mounted in the casing in any desired position and the pulley block can he mounted in any "position whatsoever without ection of the lorelre magnet being effected.

lhe starter is hinged to theend 'll of ll ed as shown in 3, tnerehy tree eccess to the interior of The leads 72 are arranged in such as not to require being disengaged when starter is swung in its hinges.

In order to allow the winch to he position for instance in a trolley lerged end portions 42 of the casing; formed with flanges 60. A rib or connecting the enlarged portions 42 and provided with grip hole 62 tecilit es the licndling nnd fastening ot the wish it to be understood that I do not desire to be limited to the exact details of construction shown and de r d, h vious modifications will skilled in the art.

1. Electric winch coinprisir electromotor in said Cf-LSlllg, field or sand motor forming the csbi o armature in said drum, mitting means on said drum, friction hearing for said drum an open ing ozt said casing having e larger diameter than said power trsnsmitting means.

2. Electric winch comprising a casing, en electromotor in said casing, the rotary field of said motor forming the cable drum, n ro said drum for said armature and power transmitting means connected with said armature. said bearing having a larger diameter than said power transmitting means.

3. Electric winch comprising a casing, an electromotor in said casing, the rotary field of said motor forming the cable drum, a rotary armature in said drum, separate power transmitting means connected with said drum and said armature, respectively, a bearing in said casing for said drum and a. bearing in said drum for said armature, said hearings having larger diameters thzin the power transmitting means adjoining same.

l. Electric winch comprising a casing, en electromotor in said casing, the rotary field or" said motor forming the cchle drum, a

rotary armature in said drum, n, toothed rim.

on said drum a neck bearing in said casing of larger diameter than said toothed rim, n, pinion on said armature, a. neck hearing in said drum o t'larger diameter than said pinion and s spur wheel rotatably mounted in said casing for transmission of power "troin' said pinion to said toothed rim.

5. Electric winch comprising a. casing, an electromotor in said casing, the rotary field. said. motor forming the cable drum a rotary armature in said drnm a toothed rim on said drum,- n necl-r bearing in said casing of larger diameter said toothe rim, a. pinion on said armature, e. neck hearing in said drum of larger diameter than said pinion a spur wheel rotatehly mounted in said ceasing; transmission of power from said I pinion to sand toothed run, a second pinion tired to said spur wheel and a neck bearing in said casing supporting said spur wheel and having a larger diameter than said sec ond pinion.

0. Electric winch comprising a casing, an ele ticmotor in said casing, the rotary field of said motor forming the cable drum, s. rotary armature in said drum, power transmit ting means on said drum, an antifriction bearing for se' l drum in an opening of said casing having is larger diameter than said power transmitting means, a locking ring securing said sntitriction bearing in place end broke lever supported by said locking ring.

'5'. Electric winch comprising s casing, an electromotor in said casing, the rotary field of said motor forming the cable drum, rotary armature in said drum, power trans mi" n; means on said drum, an untii'riction for said drum in an opening of said e. no; heaving a larger diameter than said power transmit-ting means, an electrtmisxg, netic brake mounted on said casing a loci:- ing ring securing said entifriction bearing in place, an extension on said drum, a brake wheel on said extension, a brake block errsngecl coonerate wit wheel and a till , brake lever connected with said brake and said block and supported by said locking ring.

8. Electric Winch comprising a casing, an

' l electromotor in said casing, the rotary field-of said motor forming the cable drum, a rotary armature in said drum, power transmitting C means on said drum, and. an antlfrictlon hearing for said drum 1n an opening'of said casing having a larger diameter than said gower transmitting means, a brake magnet,

brake armature and springs holding said 'brak e armature in one of its endpositions,

9. Electric winch comprising a casing,

an electromotor in said casing, the rotary field power transmitting means and a starter.

to the interior of said casing. a

In testimony whereof Iafiix my signature.

hinged to and, when unfolded, giving access PAUL WILSING. 7

.of said motor forming the cable drum, a ro- 

